Ordered as V3.5X24.7, this is a black Viton® (FKM) 75 Shore A O-Ring with an inside diameter of 24.7 mm (0.972 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 31.7 mm (1.25 in). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. Supplementary detail from the product record: Metric O-RING, JIS P25.
The compound resists aromatic hydrocarbons, many acids, and chlorinated solvents. Viton® (FKM) delivers excellent resistance to compression set and permeation, the industry benchmark where nitrile reaches its thermal limit. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C).
It sees regular use in aerospace, high-temperature process equipment, and semiconductor equipment.
Reference part number V3.5X24.7 when ordering; the item is sold individually. Unit weight is approximately 1.5867 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description 3.5MM CS X 24.7MM ID BLACK FKM 75D
uf_description2 METRIC O-RING, JIS P25
Actual_OD 31.7 mm (1.25 inch)
Actual_CS 3.5 mm (0.138 inch)
Actual_ID 24.7 mm (0.972 inch)
ProductCode Description O-Rings - Metric - Commodity